Ethan Mordden's new entry in his history of the Broadway musical looks at an era that brought us not only the gritty reality of "A Chorus Line" and the brilliantly bittersweet works of Stephen Sondheim, but also the nostalgic crowd-pleasers "No, No, Nanette" and "Annie." It was a time when Broadway both looked to its past, but also to its future and allowed reality to enter. Mordden writes of the last time we ever saw true greatness on the stage of the Broadway musical.